As a kid, I spoke with my mom all the time. That frequency dropped drastically the older I got, though. She’s got a personality disorder and I tried with her, I swear I tried so fucking hard, but I finally gave up. Now she doesn’t talk to me at all, which is far less a hardship than she imagines it is.
I had a great relationship with my dad, when he was around. He was my respite from my mother, but his relationship with her left its scars on him, too. They almost split up for a while, and I’ve never seen him happier. But now, for some unfathomable reason, they’re back together, he's back to drinking, and he’s sided with my mom and is also not speaking with me. Unlike with her, I’m actually sad to not have him around, but trying to reason with alcoholic logic isn’t helpful (or a good time) for anyone.
So yeah, I think there's far more to being close with your parents than simply the frequency of conversations, though maybe that plays a role.